<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>整数替换</title>
</head>

<body>
  <script>
    var integerReplacement = function (n) {
      if (n === 1) {
        return 0;
      }
      if (n % 2 === 0) {
        return 1 + integerReplacement(Math.floor(n / 2));
      }
      return 2 + Math.min(integerReplacement(Math.floor(n / 2)), integerReplacement(Math.floor(n / 2) + 1));
    };
    console.log(integerReplacement(8))
  </script>
</body>

</html>